MHD093C-035-PG1-AA

MPN: R911287343

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MHD093C-035-PG1-AA is a servo motor. It supports digital servo feedback. Speed rating of the motor is 2500 RPM.

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Product Description:

MHD093C-035-PG1-AA is a Bosch MHD series servo motor. It is a synchronous motor: the motor shaft speed is synchronized to the input current frequency. Other features of the motor are support for digital servo feedback, power connection on side A of the housing, electronic commutation, life-time lubricated bearings, and IP65 rated housing. MHD motors support an optional holding brake. The MHD093C-035-PG1-AA motor is equipped with a 22 Nm holding brake. Rated voltage for the brake is 24 Volts DC and the rated current is 0.71 Amps. Moment of inertia of the brake is 0.00036 kg m2. The connection time is 25 milliseconds and the disconnection time is 50 milliseconds. Mass of the holding brake is 1.1 kilograms. The MHD093C-035-PG1-AA motor has a plain shaft with shaft seal. The IP65 rated motor housing provides robust ingress protection.

Operators can operate the motor with either convection cooling or surface cooling. The continuous torque at standstill is 23 Nm with convection cooling and 34.5 Nm with surface cooling. The continuous current at standstill is 18.3 Amps with convection cooling and 27.8 Amps with surface cooling. The rated motor speed is 2500 RPM with both cooling methods. The rated torque is 9.1 Nm with convection cooling and 26.2 Nm with surface cooling. The rated current is 5.2 Amps with convection cooling and 14.9 Amps with surface cooling. Power output of the motor is 2.9 kilowatts with convection cooling and 8.5 kilowatts with surface cooling. Moment of inertia of the motor rotor is 0.003 kg m2. Mass of the motor is 23.5 kilograms and the size of flange is 140 millimeters. Only trained and experienced technical personnel should handle the motor.

Cooling
Natural convection and surface cooling
Encoder
Digital servo feedback
Flange size
140 millimeters
Holding brake
Yes
Manufacturer
Bosch Rexroth
Power connector
Side A
Product type
Synchronous motor
Protection rating
IP65
Shaft
Plain
Shaft seal
Yes
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Typical drive / motor fault code What it means Practical corrective action
F218 – Amplifier heatsink over-temperature Power stage in the drive exceeded ≈ 95 °C and shut down to protect itself  Let the unit cool, clear dust from fins, check cabinet airflow, verify fan operation.
F219 – Motor over-temperature PTC/NTC inside the stator tripped at ≈ 155 °C  Reduce mechanical load or duty-cycle, confirm ambient ≤ 40 °C, inspect blower path.
F220 – Bleeder resistor overload Dynamic-braking resistor overheated during regen decel  Lengthen decel ramps, add a larger or forced-air bleeder, check wiring.
F221 – Motor-temperature monitor defective Temp-sensor circuit open/short → supervision lost  Megger PTC leads, repair cable breaks, replace sensor if resistance is wrong.
F226 – DC-bus undervoltage Link voltage dropped below safe minimum  Inspect mains fuses and wiring, stabilise supply, check supply/regen modules.
F230 – Encoder 1 max-frequency exceeded Motor encoder signal frequency above interface limit (overspeed or noise)  Verify speed parameters, check for runaway axis, replace damaged feedback cable.
F234 – Emergency-stop activated +24 V removed at E-Stop input; drive executed controlled stop  Trace E-Stop chain, restore control voltage, reset safety relay.
F236 – Excessive position-feedback difference Two feedback channels deviate beyond window S-0-0391 Realign external encoder, tighten couplings, set correct resolution parameters.
F242 – Encoder 2 signal too small Optional external sin/cos amplitude < 1 V  Re-route or replace cable, improve shielding, verify 5 V/12 V encoder supply.
F401 – “Double MST” SERCOS loss Two consecutive master-sync telegrams missing; drive shut down  Clean fibre-optic links, check light attenuation < 12.5 dB, reseat SERCOS boards.
Model  Frame / length Continuous stand-still torque (Nm) Rated / max speed (RPM) Holding brake Feedback type Cooling
MHD093C-035-PG1-AA (baseline) 093 C 23.0 2 500 / 4 500 Yes 22 Nm  Digital SF – absolute (PG) Natural convection
MHD093C-035-PG0-AA 093 C 23 2 500 / 4 500 No  Digital SF – absolute (PG) Natural convection
MHD093B-035-PG1-AA 093 B 17.5  2 500 / 4 500 Yes 22 Nm  Digital SF – absolute (PG) Natural convection
MHD093C-058-PG1-AA 093 C 23.0  3 500 / 6 000  Yes 22 Nm  Digital SF – absolute (PG) Natural / surface 
MHD093A-058-PP0-AA 093 A 12.0  3 500 / 6 000  No  Digital SF – absolute (PP) Natural convection
MHD093C-035-NG1-AA 093 C 23.0  2 500 / 4 500  Yes 22 Nm  Digital SF – relative (NG) Natural convection
Error code Meaning
F218 Amplifier heatsink over-temperature shutdown 
F219 Motor over-temperature shutdown (PTC/NTC tripped) 
F220 Bleeder (dynamic-brake) resistor overload shutdown 
F222 Drive over-temperature monitor defective 
F226 DC-bus undervoltage (mains dip or supply loss) 
F230 Max. signal frequency of encoder 1 exceeded (overspeed/noise) 
F234 Emergency-stop activated / +24 V removed 
F236 Excessive position-feedback difference between channels 
F242 Encoder 2 failure – signal amplitude too small 
F405 “Error during phase regression” – SERCOS ring fault 

Frequently Asked Questions about MHD093C-035-PG1-AA:

Q: What is torque rating for the holding brake?

A: Torque rating for the holding brake is 22 Nm.

Q: What is the weight of the holding brake?

A: Weight of the holding brake is 1.1 kilograms.

Q: What is the operating temperature?

A: The operating temperature for MHD motors is 0 to 40 degrees Celsius.

Q: What is the peak motor current?

A: The peak motor current is 83.5 Amps.

Q: What is the peak motor speed?

A: The peak motor speed is 4500 RPM.


Internal Product Review

  • ‘‘The MHD093C-035-PG1-AA from Bosch Rexroth Indramat is a robust motor with IP65 rated housing that operators can deploy in adverse operating conditions. It makes for a great choice when upgrading in austere environments.’’

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